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xfinity internet Flashcards Preview

When should the Public LAN Firewall Module be enabled?

When only the Comcast-provided router is utilized to support the customer's network

2

What is the maximum length for data carrying CAT5 cable?

328 feet / 100 meters

3

At 64 Kbps, what is the number of bits in each sample in the G.711 PCE encoding scheme?

8000

4

What is a method of managing devices or network elements in a data network?

SNMP (Simple Network Management Protocol)

5

What is the term for a condition caused by packets not being received in the correct order, or taking too long to arrive at their destination?

Jitter

6

What system translates a web page domain name into an IP address?

DNS (Domain Name System)

7

What is the upload and download speeds of internet essentials?

10 mbps download / 1 mbps upload

8

What is the FTP server for uploading a webpage?

Upload.comcast.net

9

Which virus inserts copies of itself into other program files?

Replication

10

One kilobyte of PC data is the equivalent of how many bytes?

1024 bytes

11

A self-help application for Xfinity Internet that will help customers optimize their Internet service by performing a number of beneficial tactics. It can also help customers resolve Internet connectivity issues by providing them with tactics that CAE's typically recommend over the phone.

Easy Solve

12

What is the Xfinity Internet Rule of Three?

1. Internet welcome kit and email address2. Make Comcast.net the homepage3. Benefits of Comcast.net with Constant

13

What is the cost of the Deluxe 100 plus Business Internet plan?

199.95 / month

14

What is the mobile websites name?

http://m.comcast.net

15

How many total IP addresses does a /30 subnet use?

4

16

What is the installation demark for Business Internet?

The business customer's LAN connection point

17

Which virus checks for certain conditions like a specific date?

Event Watching

18

What term describes an address or group of addresses on the Internet

Domain Name

19

What is the handheld device that is used for navigation on a PC?

Mouse

20

What is the maximum number of Norton licenses available per Business Internet acco

3 licenses are included with your Comcast Business Internet subscription. Additional licenses are available. - See more at: http://business.comcast.com/internet/business-internet/included-features#sthash.Qw4ksnqa.dpuf

21

What are the first and last of the 5 wireless standards as set by the IEEE?

B and AC

22

What are 3 types of firewall rules?

1. Packet Filtering2. Proxy3. Stateful Packet Inspection (SPI)

23

How many Mbps of bandwidth has the FCC allocated for each broadcast digital channel?

19.39Mbps

24

What free service, available to only Xfinity Internet customers helps to identify and correct common network issues that slow their connection?

Easy Solve

25

What is the maximum data rate specification of a CAT3 cable?

16 Mbps

26

What is the name of the tool that allows all customers to retrieve their user IDs on their own, without having to contact support?

Comcast User ID (UID) lookup Tool

27

/29 subnets provide how many static IP addresses?

5

28

What is the upload / download speed for the Business Internet Starter package?

16 Mbps download / 3 Mbps upload

29

Port 25 is blocked for residential customers and can be blocked by Comcast Network Security for commercial customers. What alternate port does Comcast recommend for email transmission?

Port 587

30

What is the Business Internet plan that costs 69.95 / month?

Starter

31

What is the Business Internet package that has 50 Mbps download / 10 Mbps upload?

Deluxe 50

32

What is the Business Internet package that has 100 Mbps download / 20 Mbps upload?

Deluxe 100 plus

33

Which two speed levels (US and DS) of service require a customer to have a DOCSIS 3 modem?

25/5 and 50/10 or Performance and Blast

34

What is the term for a virus unleashing its payload?

Delivery

35

What is the Business Internet plan that costs 149.95 / month?

Deluxe 75

36

What is the throughput of a T1 network interface?

1.54 Mb/sec

37

What is DOCSIS?

It’s an international telecommunications standard that permits the addition of high-bandwidth data transfer to an existing Cable TV system.

38

What is the upload and download speeds of performance?

25 mbps download / 5 mbps upload

39

Using a Business Internet router, what are the 4 types of IPs?

Network, Routable, Gateway, and Broadcast.

40

What technique is described as having several hosts or computers share a single IP address for address to the Internet?

Network Address Translation

41

Which virus disguises itself to avoid detection?

Camouflage

42

What operating systems support our internet service?

Vista, 7,8 and Windows 10

43

What is the default IP address of the Business Gateway?

http://10.1.10.1

44

The USB port can be used to connect how many peripheral devices?

127

45

Why is 802.11a incompatible with the other standards

It's frequency is 5Ghz and the others are 2.4 Ghz

46

Computers on the Comcast network get their IP addresses automatically from what server?

DHCP

47

According to DOCSIS standards, what is the maximum data throughput on a 256 QAM channel?

42.88 Mbps

48

How many total IP addresses does a /29 subnet use?

8

49

What is the /29 subnet mask?

255.255.255.248

50

How many email addresses do you receive with an internet account?

7

51

What features provides bursts of download and upload speeds for the first 10MB and 5MB of a file respectively?

Power Boost

52

What is the upload / download speed for the Business Internet Deluxe 75 package?

75 Mbps download / 15 Mbps upload

53

/28 subnets provide how many static IP addresses?

13

54

What are the 4 types of Business Web Hosting Packages?

Starter, Business, Commerce, and Professional

55

When a customer reports that they are unable to send outbound email using an email client such as Outlook Express, what port is blocked?

Port 25

56

What is the upload and download speeds of performance starter?

6 mbps download / 1 mbps upload

57

What is the upload and download speeds of economy plus?

3 mbps download / 768 kbps upload

58

What website introduced the launch of XFINITY?

Xfinity.com

59

The WAN side of the CMTS provides connectivity to what two main areas?

World Wide Web (internet) and the data network management system

60

/30 subnets provide how many static IP addresses?

1

61

What is the cost of the Deluxe 50 Business Internet plan?

109.95 / month

62

How many total IP addresses does a /28 subnet use?

16

63

What is the /30 subnet mask?

255.255.255.252

64

This version of DOCSIS includes enhancements such as IPV6, Channel bonding, Enhanced QoS and increased data security.

DOCSIS 3.0

65

Which part of a packet contains the data being sent?

Payload

66

What is the command line that displays the IP address, subnet mask, and default gateway for all adapters?

IP Config

67

How much storage do customers get per email account?

10 GB each email address

68

What is a managed hard drive, connected to a LAN that can be accessible by anyone on the Internet?

Network Attached Storage (NAS)

69

What is the upload and download speeds of Extreme 105?

105 mbps download / 20 mbps upload

70

Software or Hardware that prevents unauthorized access from outside parties?

Firewall

71

What type of provisioning occurs when a customer account exists in the billing system and the modem to be installed is on the account prior to it being physically connected?

Top Down Provisioning

72

Which IP address is the public static IP that Comcast supplies to the customer?

Routable IP

73

What is the /28 subnet mask?

255.255.255.240

74

What is the duration of video clips saved to the subscriber portal?

15 seconds

75

What allows for incoming traffic to be directed to your computer?

Port Forwarding

76

What is the outgoing server port number used for an email client?

Port 465

77

How many email accounts do XFINITY Internet customers get?

7

78

What is the IP address to access the configuration screens for the Business Internet Gateway?

http://10.1.10.1

79

What is a headend device used to control cable modems?

CMTS (Cable Modem Termination System)

80

A tool that simplifies the process of switching Internet Service Providers "ISPs" and email providers and transfers information from your current email account to your Xfinity account keeping you in touch with friends and contacts while your email address is being updated.

Easy Change

81

What is the MTTR for Business Internet?

4 hours

82

If a customer is receiving 70.89.4.0/30 as his/her static IP address, how many routable IPs will that customer be able to use?